Description: This book mainly tells that my mother is a kind of magical instrument, she can make beautiful sounds, but the keys are not on her. Only I knows where the keys are. Sometimes, the piano keys are on the cabinet, and when I stepped on a small chair to reach for the valuables on the cabinet, my mother would make an ah sound; sometimes, the keyboard is on the feet of me, and when I do something wrong and want to escape, my mother will use the bass to call my name; mother will also make sounds like cello, flute, African drum, small gong... I gradually learned what kind of keys to press to make my mother make a nice sound and let the wonderful and harmonious symphony surround our home.